PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/22-00:12:50
G01     76.3           33.1                9.6 +/-    0.83      15.8 +/-    0.83  0.070 / 0.090
G07     134.3          31.3               10.5 +/-    1.45      17.9 +/-    1.45  0.070 / 0.090
G11     55.9           32.9                8.3 +/-    1.38      13.8 +/-    1.38  0.100 / 0.070
G13     280.0          38.4               10.5 +/-    2.42      15.7 +/-    2.42  0.110 / 0.090
G15     306.5          14.2                6.1 +/-    4.35      15.5 +/-    4.35  0.080 / 0.080
G17     225.2          67.0               12.1 +/-    0.62      13.0 +/-    0.62  0.090 / 0.100
G18     50.0           18.1                7.7 +/-    3.45      17.9 +/-    3.45  0.040 / 0.040
G19     220.3          36.8               11.0 +/-    1.80      16.9 +/-    1.80  0.040 / 0.050
G28     3.9            61.1                9.1 +/-    0.78      10.2 +/-    0.78  0.110 / 0.300
G30     129.7          66.7               11.6 +/-    0.48      12.6 +/-    0.48  0.080 / 0.310